Rock 1976.10.29 CD, LP, Cassette Studio Rykodisc ASIN: B0000009SQ Frank Zappa Sharkie Barker - Vocals (bckgr); Captain Beefheart - Harmonica; Terry Bozzio - Drums, Vocals (bckgr); Napoleon Murphy Brock - Saxophone, Vocals; Ruben Ladron de Guevara - Vocals (bckgr;) Roy Estrada - Bass, Vocals, Vocals (bckgr); Andre Lewis - Organ, Vocals, Vocals (bckgr); Davey Moire - Vocals, Vocals (bckgr), Engineer; Lu Ann Neil - Harp; Sparky Parker - Vocals; Dave Parlato - Bass; Ruth Underwood - Synthesizer, Marimba; Donnie Vliet - Harmonica Time 41:32 <br> Frank Zappa - Synthesizer, Bass, Guitar, Composer, Director, Keyboards, Vocals, Producer, Remixing